{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "324495",
    "entityType": "User",
    "nonce": "0xd8c520a134934f7995637ceb299d7a4333692e1e54c6fe9cc24b06cb4e9c3bac",
    "signature": "0x27a22aaf9addc400cd98ac5b1cd3cfcd2722fcba607650173342f059355d9cb53c1e4da8de22df3a1f76f2b9713d7540f9dc72d4a9f2ae0bd5761ad66e7fbe1a1c",
    "signer": "0x6B7F882A34611Bd25a9cdAbF8a8f0cE9962F5335",
    "userId": "358693582"
  }
}